Windshield wiper



March 15, 1932. y C, A, DUPU|5 v 1,849,915

WINDSHIELD WIPER Filed 'May 8, 1930 WIM mummy jig/1k; Inventor By W mi 1 l Attorney.:4

Patented Mar. 15, 1932 Urrr STATES CHARLES A. nUrUIs, or MONTREAL, QUEBEC, CANADA t WINDSHIELD lwIrEn Application filed May 8,

The present invention relates to improvements in vehicle windshield wipers and has for its primary object the provision of y a wiper which willbe entirely enclosed when inactive so as to protect the wiping element from the elements and to avoid the accumula-` tion of dirt and foreign matter thereon.

A further object of the invention is the provision. of an improved windshield wiper construction designed to more effectively clean the windshield glass' and to avoid the formation of streaks thereon. Y

Another object of the invention is the provision of a windshield wiping mechanism having means for lremoving snow and frost from the windshield'. t

Still another object of the invention is the provision of a windshield wiper which may be manually operated ,without great e'ortL Other objects and advantages of the invention will become apparent as the description progresses.

In the accompanying drawings forming a part of this specification and in which like reference characters are employed to designate corresponding parts throughout the same: V

Figure l is a front elevational view of a vehicle illustrating the Windshield thereof,

Figure 2 is a horizontal section taken on the line 2-2 of Figure l,

Figure 3 is a transverse section taken on the line 3-3 of Figure l, .showing the wiper in operative arrangement,

Figure 4f. is an enlarged fragmentary section taken on the line lf-4l of Figure l, with the wiper in inactive arrangement,

Figure 5 is a similar view showing the wiper disposed in operative arrangement,

Figure 6 is a longitudinal section through the wiper structure showing the wiper in an operative arrangement,

Figure 7 is a similar view showing the wiper in inactive arrangement,

Figure 8 is an enlarged' section taken on the line 8 8 of Figure 3,

Figure 9 is a similar view taken on the line 9-9 of Figure 7 and Figure l0 is an enlarged section taken on the line 10-10 of Figure l.

1930; Serial No. 450,857.

Referring to the drawings, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral generally designates a conventional-type of automobile equipped with the common form of glass windshield 2l mounted within ak marginal frame 22. t 1 t Extending longitudinally across the windshield adjacent its upper edge and attached' tothe frame 22 isl a flat, preferably metallic 66 guide bar 23, cut down adjacent one end to provide a reduced portion 24. Attached to the windshield Vat one end is a' vertically extending metallic strip' 25, pressed firmly against the glass, as shown to advantagel in Figures l and 4. v H

The wiper constructionv embodies an elon gated metallic casing 26 of relatively flat tubular'form attached at the uper end to a block 27 having the` upper forward edge 70 rabbeted. The upper exterior portion of the casing is cut away, as indicated atl 28, to form a longitudinal slot. Secured to the block 27 so as to extend over the forward portion is an angular bracket 29 having vertically'depend 75 Y ing bifurcated flanges lsecured to the front face ofthe block by means of screws 30 and an upper horizontal flange fitting in the rabbeted portion of the block and disposedV to overhang the guidebar 23 which operates in a recess formed between the upper liange of thebraclget 29 and the lower rabbeted portion of the block. A .p

Fitted within thecasing 26 is anelongated wiper brush, including a backj 3l extending outwardly and bristles 32 directed toward the windshield; On the intermediate portion of the back 31, at the outer edge, are formed a pair "of spaced clips 33 which rigidly'engage the intermediate portion of a longitudinally extending bar spring 34. Y l I Y T he'spring 34, which is inthe form of a relativelyA narrow spring metal bar, is bent longitudinally so that its central' portion as sumes 'an inward arcuate curvature. yThe lower end of the spring 34 engages a recess in the bottom of the casing 26, while the upper extremity overlies the front face of theblock 27 between the forward flanges of the bracket 29, the upper end portion of the spring being 100 disposed to contact with the outer edge of the guide bar 23.

VThe wiper is actuated from its normal inactive position at one extreme end of the windshield longitudinally across the windshield in operative movement by means of a rope 35, one end of which is attached to the bracket 29 while the opposed end carries a ring 36. The rope is trained through an opening 37 formed through the windshield frame 22 at the upper extreme'corner opposedto the normal position of the wiper, adjacent the steering wheel to enable the operator to conif itis secured to thewindshield frame.

vnected with the side of the drum 39 VVand veniently pull the same to rslide the wiper yover the windshield in one direction.

An opposed movement of the wiper is effected through the medium of a complementary rope 38 attached to the opposed side of the bracket 29 wound about and fastened to a, winding drum 39 rotatably journaled lin a casing 40. Thecasing is provided with laterally extending flanges 4l by means of which Conwiper `is disposed at Yone end of the windshield, positioned upon the strip 25, actuatedr thereto and' retained in position by the spring actuated winding mechanism. Furthermore, the wiper brush will have assumed a retracted e position within the wiper casing`26 sothat the bristleswill be fully protected, thev inner edge portion of the casing contacting` with theV strip 25 due to engagement with a holder arm'43 to tightly enclose the brush and protect the same from dirt andV foreign matter.

VlVhen the vehicle is operated during a` rain or snow fall, the wiper is periodically swept across the outer side of the windshield by engaging the ring 36- andv pulling the rope 35, whichwill draw'the wiper from its normal inoperativev position longitudinally toward the opposed end of the windshield. During the operative movement of the Vwindshield structure., the upper end of 'the' spring bar 34 will be adjusted outwardly from its retracted arrangement in contact with the reduced portion of the guide bar 23- as'it slides along the bar in engagement with the. maj or relatively wide portion, the upper part of the spring .bar thus acting as a lever fulcrumed between the upper extremity and the connecting clip 33v on the slotted portion of thecasing to extend the' brush inwardly toward the windshield so that the bristles will firmly contact therewith to effectively clean the same...

In order to facilitater the effective lremoval of frost which might accumulate on the windshield, means are provided/for av fountain feed supply of asuit'able dissolving liquid, this being effected by mounting a container or reservoir 44 against the inner side of the top rail of the windshield frame and extending an angular conducting pipe 45 forward through the frame and downwardly so that the discharge outlet will be disposed adjacent the upper edge of the windshield, as shown to advantage in Figure 3. A suitable control valve is mounted in the conduit for regulating the amount of fluid discharged upon the windshield. During the reciprocating movement of the wiper, the fluid will be uniformly distributed over the windshield to permit effective removal of the frost.

. It is to be understood that the form of my invention herein shown and described is to be taken as a preferred example lof the same, and that various changes as to the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subj oined claim.

Having thus. described my invention, I claim:

An apparatus of the characterv described comprising a longitudinally guide bar adapted to be mounted adjacent the windshield of a vehicle, a wiper casing extending transversely of the windshield having one end slidably connected with the guide bar, the said guide bar having the forward edge portionV formed to provide an undulating contour, a brush adjustably mounted in the wiper casing, brush adjusting means adapted vto urge the brush to an'extended wiping position or to a retracted windshield disengaging posi f tion at predetermined positions of the wind- -shield in correspondence withrthe undulating form of the guide bar, and means forslidably actuatingjthe said wiper casing and brush in reciprocating movement over the Windshield.

In witness whereof I have hereunto set my hand. c

CHARLES A. DUPUIS. 

